4S 18650 Li-ion Lithium Battery Charger Protection Board


C-2 , R-6 , I-4


Product ID: 18588 SKU: mod-18588 Categories: ,

This Battery protection board can be used for high current applications as a lithium battery protection board, which is suitable for large current draining equipment up to 40A at pick such as electric tools, motors, electric drills, etc.


  • Single Cell overcharge protect voltage:  4.23 – 4.28V
  • Single Cell overcharge rotect recover voltage:  4.08 – 4.18
  • Overcharge protect delay:  0.5 – 1.5S
  • Single Cell over-discharge protect voltage:   2.72 – 2.88V
  • Single Cell over-discharge rotect recover voltage:   2.9 – 3.1V
  • Overcharge protect current:  60A
  • Over-discharge protect current: 60A
  • Over-discharge protectdelay: 0.5 – 1.5S
  • Temperature protect: YES
  • Disconnect protect: YES
  • Shortage protect: YES
  • Shortage delay: 100 – 600μS
  • Shortage protect recover: YES
  • Charging current:  25A
  • Discharging current: 25A
  • Charging voltage : 12.6V for 3S BMS board
  •                                 16.8V for 4S BMS board
  •                                 21V for 5S BMS board

You can change the Series by adjusting the oΩ resistor(or shortcut by tin) as bellow:


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